LXT9785 datasheet(82/226 Pages) INTEL

82 / 226 page

LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers

Datasheet

Document Number: 249241

Revision Number: 007

Revision Date: August 28, 2003

C15,

B17

206

205

RxData6_0

RxData6_1

O, TS

O, TS, ID

Receive Data - Port 6.

Receive data signals (2-bit parallel di-bits) are driven

synchronously to REFCLK.

E16,

F14

198

197

RxData7_0

RxData7_1

O, TS

O, TS, ID

Receive Data - Port 7.

Receive data signals (2-bit parallel di-bits) are driven

synchronously to REFCLK.

E4,

C4,

A5,

B8,

B12,

D12,

B16,

E15

200

CRS_DV0

CRS_DV1

CRS_DV2

CRS_DV3

CRS_DV4

CRS_DV5

CRS_DV6

CRS_DV7

O, TS, SL,

Carrier Sense/Receive Data Valid - Ports 0-7.

On detection of valid carrier, these signals are

asserted asynchronously with respect to REFCLK.

CRS_DVn is de-asserted on loss of carrier,

synchronous to REFCLK.

D2,

D5,

D7,

C8,

A12,

A15,

A17,

D17

201

RxER0

RxER1

RxER2

RxER3

RxER4

RxER5

RxER6

RxER7

O, TS, SL,

ID, I, ST

Receive Error - Ports 0-7.

These signals are synchronous to the respective

REFCLK. Active High indicates that received code

group is invalid, or that PLL is not locked.

The RxER signals have the following additional

function pins:

RxER0 (MDIX)

RxER1 (PAUSE)

RxER2 (PREASEL)

RxER4 (FIFOSEL0)

RxER5 (FIFOSEL1)

RxER6 {LINKHOLD)

Table 24. Intel® LXT9785/LXT9785E RMII Signal Descriptions – BGA23 (Sheet 3 of 3)

Ball/Pin

Designation

Symbol

Type1

Signal Description2,3

BGA23

PQFP

1. Type Column Coding: I = Input, O = Output, OD = Open Drain output, ST = Schmitt Triggered input, TS =

Three-State-able output, SL = Slew-rate Limited output, IP = weak Internal Pull-up, ID = weak Internal pull-

Down.

2. The IP/ID resistors are disabled during H/W Power-Down mode. If a Pin is an output or an I/O, the IP/ID

resistors are also disabled when the output is enabled.

3. RxData[0:7]_0, RxData[0:7]_1, CRS_DV[0:7] and RxER[0:7] outputs are three-stated in Isolation and H/W

Power-Down modes and during H/W reset.

LXT9785 Datasheet(PDF) 82 Page - Intel Corporation

LXT9785 Datasheet(HTML) 82 Page - Intel Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL